Percentage Mcqs

Q.  If population of certain city increases at the rate of 5%. If population in 1981 was 138915, then population in 1978 was__________?

a. 1,20,000
b. 1,10,000
c. 1,00,000
d. 90,000


ANSWER: See Answer
 
X * (105/100) * (105/100) * (105/100) = 138915
X = 138915/1.157625
X = 120000
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